Piston particularly for internal-combustion engines.



To 1.22 'whom ez'; may 00m-eww Re it known that Fimnnnicn 'iiennn nnonss, s 'snegeee of Mie bling of G- Bidi-sin, and resident of Coifenny, in

eouny of f'nrwiok, Engis-nd, have inventan?. ce1-'tain new and useful mprevegne iisons Pmtieniariy for i. Josemi@ ion Engines, of Wnciehe specimen tien.

" ihis invention felafbes to pistons. Usimen lariy foi: inteinaigombnsision ei Line" has for its o'bieei improvise en impfen fee eonsti'nc'ion in Wiiieh excess of oii nnssng up the Cyiimier will be prevened.

Usnniiy the lower erige si' 55ne- 5 is thieiienei so thai the pis'gon fi oii piies up in freni of this inici@ and is iiorced past die pif f so enters the ooznbnsiien L. einen According se eine ini on, im wim sied by lieveling" the ton, prefembiy s in A eo con be no seenninis'fion @if mi ife'scens, and infinis' en' beveied per@ :amwzveff against p indei" Weil so sinkt 'it'. may exert :i scraping aiion, Wiih une esui, *dies is scraped ofi on o che if ide o tiie 'in The accompanying; ,sawing is vstion with e, 'paire/'broken away showing one oel.. ed end of the piston elsems :fi swaying" :3 neiien, anni, owing to the beveled" esige, :is `the pison descends,- the oii, instead of piiing up in fi'oni; of the (ieseending piston is sempeci" 01T; on to the inside oi the pist-on. To ni'o'tji'fie the lower peet fl with' the requise@ i'esiience it lnsy be she i'ei'ieniiy or anguiaiiy in one or more pieces :is :as and mee-ns ae 'previderi for snowing' the inteslneiiste parts io spring onef'nid. Foi e iii limpie shese grerz'ssnmy be hammeieci o1- peefzied so 'oeners e natural spring oni;- enseqiienniyit is possible to ineke thepison whole Wayei'onnd :it its iow'e ed so time noise is redned,

imp-oise eensiiiute oi! Ways ai'- e en' iii insonni oi' eil. *so passup the 6p @pissen and for this purpose ,endl beyond ehe sbin spiinfgy: L sion. For inseance, the piston Je for zi distance ofssy .i0 iineiei's eoin the ionei edge, and the s may erden@ i5 miiiime'ters up the piswn, endiniiey muy eoinmnnicte with a, recess in @he omeismfooe of sthe piston if reqoiiei.

Ubvionsiy the spi'ingy iower exelernitv ef ghe skiif niej," be ennemie from the .inain 'body and be @I ieieo in any suitable wey. t be piefem-oie Where the i u,lnn'ii'oimn o? some materiel tien i Bg; Varying he number, length, and direcnon of i'ghe slis i die @unonn of lubricant alien-'eci to pass Sinni elle insieie oi' the piston to the oldie-1: wnii can be Varied and hence 8G e inbivienion of mijnseci.

'ihe resni; obtained from employing special scraping ring; is quite different from shoe nf lich is obi-mined by the presentinveni'ie ring' must be eut hiough at one ze provide resiiience, and it this point them .is sound no be ienmge, Filrtherrnore, ehe moves upward and downward siigiisijgf in the ggoove :is the piston i'eeipro entes she @ii pnmped :i1-omni the back of he ring. i-iy nmkinp; the special scraping oiiien neggvei with the piston here is no the piston surface een be aiii'ienitv in inschinine, and it is uite en .f *i .1w insti-ei" to obtain n scraping 21601011.95

Wi 'eh lis uniform the Whole wey around the eyiinei:

By this ineens Semper rings :1re dispensed 'wih und n simpie piston construction obini'ned which prevents the passage of an ex- 100 cess of nii and also causes the piston to beni` eveniy the whole wsj around.

What i ffinim as my invention., and desire io secure by Let-tees Patent, is:-

l. A. piston having e resilient beimontent? lower position, smi e beveled ege to said bell-mouthed portion, substantiallyas setI forth. l

2. A plston havmg a reslhent belmouthed lower portion,I longtujna slits in said porton,' qnd a bevelecl edge to smi bellmouthed pox-tum, substantmlly as set forth. n testlmony whereof I have Slgned my name to this specification in the pesence of two subscribing Witnesses. FREDERICK T. BURGESS.

.Witnesses Y A. L. WADE, W. E. CRESSEY. 

